Exercise bike



FIG. 1 is a front, right, and top perspective view of an exercise bike, showing my design.

FIG. 2 is a rear, left, and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is an enlarged view of the portion labeled FIG. 9 in FIG. 1 .

FIG. 10 is an enlarged view of the portion labeled FIG. 10 in FIG. 1 .

FIG. 11 is an enlarged view of the portion labeled FIG. 11 in FIG. 1 .

FIG. 12 is an enlarged view of the portion labeled FIG. 13 in FIG. 1 .

FIG. 13 is an enlarged view of the portion labeled FIG. 14 in FIG. 2 ; and,

FIG. 14 is an enlarged view of the portion labeled FIG. 12 in FIG. 8 .

The evenly spaced broken lines shown in the drawings are included to show portions of the exercise bike that form no part of the claimed design.

The dot-dash broken lines shown in the drawings indicate an enlarged view of the exercise bike. 

CLAIM The ornamental design for an exercise bike, as shown and described. 